Portable generating set



Oct. 6, 1 925. 1,556,492

(5. B. COLEMAN PORTABLE GENERATiNG SET Filed May 7. 1921 2 1/ 2/ l I 14 L L fig 1 20 4 m /5 fig 5 4 i A 2"- WITNESS I 3/ INVENTOR ,Ai. fi-fozznA/v A ATTORNE Ys Patented 6 1925.

umrao sTA as PATENT OFFICE.

onoaon a. COLEMAN, or am raanorsco, camroanm, assronon, 31mm AND IIBNE ASSIGNMENTS TO MAJ'IK ELECTRIC APPLIANCE COMPANY, OF SAN FRAN orsco, oamronnm, a coaronarron or CALIFORNIA. p

roarannn emaa'rmo snr.

' Application filed. Kay 7, v1921. Serial No. 487,770.

To all w kom it may ooncem: V

Be it known that I, Gno'non B.- Comrmn, a citizen of the United States, and a res dent of the city and county of San Francisco and State of California, have invented a new and useful Portable Generating Set, of which-thefollowing is a specification. f

The present invention relates toelectri'c generators and more particularly to a small portable generator. w i I It is an object of the present'inventionto provide acompact, and simple self-contained electric generating [apparatus in which the rotor of the electric generator is driven by 16 means of a main spring associated b means of atransmission mechanism "with the generator.

- A-further object'of the invention s to.

provide a sinall',-convenientlyarranged and 00 carried, generator for the production of elec- 1 trici-ty to furnish\power forenergizing. small electric appliances.

Anotherob'ect of the invention is to proi- I vide an organized, self-contained generating 85 set having a main driving spring adapte to be-manually or otherwisewound for the storage. of the energy to be'transmitt'ed at a predetermined rate of speed for the ,I'OMIOII of the rotor of the associated generator. 80 And, in this connection, it is further an object to provide means for the controlling of theoperation of the generator as may be desired by the stored energy of the spring."

The invention possesses other objects and- 85 features of advanta some of whlch with the. foregoing,- will made manifest in the 4 :following description of the preferred form of the invention which-is illustrated in the drawings accompanying and forming part of the specification. Itis to be understood that it is not intended'to ilimitthe invention to the eml'iodime'nt' shownby the said drawings and description as variations may be adopted within-the of the invention as set forth'in the claims.

The invention may variety of structures and is shown in the present case, in' Fig. 1 as embodied in theform of a flash lamp, to be con.- veniently carried onthe per'son, or in any suitable receptacle,'while, in Fig. 2 the invention'is shown as embodied in the form of a desk or table lamp. However, these show be i'embodied" in a 5 to acover or cap' 20 rotative and proportions, in which there is mounted v a main spring adapted to be manually. or otherwise wound 'or. tensioned, and conti p ication transmission gearin ,the speeded up, driving element of-which1s connectedto the rotor ofi a generator also arranged in the shell. Means are ling, at will, drivin o the rotor of the generator by .the sto ener j in the sprin The embodiments of t e. invention ere shown include a shell orihonsing 2, within which is arranged a mains ring 3, preferablyof the spiral type, and w ose mner pinion shaft 5' connected as by a coupling 6 to a shaft 7. I

Theshaft 7 forms the driving connection betweenthe clock-work and a suitable form of electric generator arranged within the shell 2 and which, in the'present case, has a rotor or armature 8 the pole pieces 9 of ,which are d in a common plane perpendicular to t e axis of rotation of the: armature and shaft 7 The pole pieces. 9, a suitable number of which may be empleiyedi sweep in a plane parallel to poles of a field element 10 of the generator. Current is collected from the generator, while it is in .,operation, by le'adwires Hand 12 associated with brushes 18bearing against a' disk-like commutator 14 of the rotor 8. The -lead wiresll and 12 are shown in Fig. 1 as conutilized for windin the main spring to store rovided for control- I ous to which thereisdisposed a multij end is connected to one vof'the .shafts'of a Y suitable 'form .-of clock-work 4' having .a

nected to an electric lamp receptacle 15in which is mounted alam'p' 16, b h i d a lens therein the desire energy for driving the rotor of the nerator and in Fig. 1 the outer end of t 'e' main spring I y mounted on the contiguous end of the shell 2 and held against axial movement, spring 3, the end cap 20 is rotated about the s ell 2, suitable means being rovided to lock the cap 20 against retraction and un-.

3 is attached] Towind the 5 winding of the spring. Such a means' may consist ofa ratchet dog2l, interposed be-- tween the cap 20 and the shell 2 and which instantly rotate the rotor of the'generator is operative to ermit the cap to be freely rotated in one irection and prevent rotation thereof in the opposite direction.

Since the main spring 3 has a tendency to when the spring is laced under tension; it

l the operation of the generating mechanism.

: In order to release the restrained "20 mechanism, so'that the rotor may be turne is desirable to provide suitable-means for locking the operating mechanism against action exce t as may be desired. To that end a simple rake device is employed and may consist of a brake lever 22 arranged in the shell to engage a contiguous ortion of a rotatm part as for instance 't e rotor.

The ake is normally efiective to restrain and may be held inaction as by aspring 23.

, 2. Since it isdesirable, when the" invention that the is employed as a table lamp to provide for the storage of energy'in a spring of such size enerator' can be operated for a V conslderab e period of time, as for exampletwo or three hours, a different format windmg mechanism for the spring may be util1zed,'such, for instance,- as acrank 30 .mounted on the base portion 2 of the shell and carryin a pinion 31 "engaging a master gear 32 to w 'ch one end of the main spring 3 is secured. A do or restraining awl 33 is arranged in the ase 2 to lock t egear V 32 against rotation in one direction so that thespring may be held under tension. A transmission mechanism and an electric generator associated therewith substantially as above described is arranged in the upwardly extending body or shell 2, which is provided with a reduced neck 2" upon the upper end of which is mounted an electric lamp 34 to which the lead wires 11 and 12 from the generator are extended.

trol.

actuated and disengage the brake 22 Fig. 1, the generator is operative only while released from the control of the brake by the pressure,.constantly', of the finger of the operator on the push button 24, which, however, re resents but one form of brake conother form of brake control is shownin Fi 2 as comprising a push button 25 slida 1e in the casing or shell 2 to remain in a given position as lon as'may be desired without ressure on the utton and thus serve to app y the brake 22 to the rotor of the generator. Thus, the shiftingof the push button 25 in one direction serves to apply the brake and hold it until the push button is again shifted in the opposite direction. It is understood that acompound spring that is, a spring formed of a plurality oi single springs in .combinatiommay be employed instead of the single spring shown.

What is claimed is:

1.111 a generating set adapted to be operated bymanual power, a tubular casing adapted to be grasped by the hands ofthe user, and means for generating electric power comprising a springarranged to be manually wound, and a generator encased within the casing havin" able, coaxially arranged held and armature structures, these parts being displaced from each other in an axial direction and having opposed plane faces, the dimensions of these parts being such that they extend in a radial direction substantially to the inner wall of the casing. I V p 2. In a device oi the class described, the combinationof a casing; a frame therein; field coils fixedly secured to said frame with their cores parallel to the axis of said casing; a lamp secured to one end of said frame; electric connections between. said. coils and lamp; a shaft in bearings on saidframe; a magnet on said shaft with the end faces of its poles opposed and ad'acent to the ends of said cores; and means or rotating' said magnet.

In testimony whereof, I have hereunto set my hand.

enema a. cons.

relatively rotat- 

